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How to replace some content of a file and write with a new name

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Top Forums Shell Programming and Scripting How to replace some content of a file and write with a new name
# 1  
Old 11-15-2009
How to replace some content of a file and write with a new name


I have a control file which looks like this

INFILE '/home/scott/XXX.dat'

how can i change the content of this file and replace the file in the second line with anothe file name and write it back with another name to the disk?

# 2  
Old 11-15-2009
sed "2s@.*@INFILE 'newfile'@" infile > outfile

# 3  
Old 11-15-2009
Thanks buddy Smilie one more thing. How can i add a new line before the third line (Which is PRESERVE BLANKS) so the new file will look like this

INFILE '/home/scott/XXX.dat'
<New Line>
# 4  
Old 11-15-2009
sed "/INFILE/s@.*@INFILE 'newfile/etc'@;/^PRES/i\ " infile > outfile

Or if you meant <New Line> to be a literal string:
sed "/INFILE/s@.*@INFILE 'newfile/etc'@;/^PRES/i<New Line>" infile > outfile

# 5  
Old 11-15-2009

Smilie Thanks buddy Smilie
# 6  
Old 11-15-2009
sed "s#^\(INFILE\).*#\1 '/path/to/newfile'\n#" infile > outfile

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